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Tag Archive: how to


Sidemount Technical Wreck Diving Subic Bay Philippines

How to Dive with ‘Insta-Buddies’ by Andy Davis The term ‘insta-buddy‘ is popularly used within the scuba community to define a diver of unknown skill, capability and mindset – that you are paired with on a dive boat.  Typically, this term is used to describe the worst case scenario; of a scuba dive buddy who […]

Sidemount Technical Wreck Diving Subic Bay Philippines

Pony Cylinders and Redundant Air Sources for Wreck Diving by Andy Davis Recreational wreck divers often question whether they need to carry a redundant source of air when conducting specialist wreck diving activities.  Most agencies and instructors will generally recommend the use of redundant air sources to be a prudent measure for wreck divers.  However, […]

scuba diving Trim-Water-Resistance

Scuba Buoyancy Masterclass Series #1 STREAMLINED SCUBA EQUIPMENT by Andy Davis Streamlined scuba equipment is a critical factor in making overall improvements to your comfort and control in the water.  Scuba divers should consider streamlined scuba kit to be a high priority when purchasing and configuring their equipment for diving. This article explains the benefits […]

the balanced rig scuba diving

Scuba Buoyancy Masterclass Series #8 THE BALANCED RIG by Andy Davis When considering the configuration of their scuba equipment for precision buoyancy and weighting, scuba divers should pay heed to the safety issues arising from having non-ditchable weight.  To mitigate those potential problems, it is worthwhile to devote some attention to the principle of a […]

Scuba Diving Buoyancy

Scuba Buoyancy Masterclass #7 ASCENT, DESCENT & BOTTOM PHASE by Andy Davis Scuba buoyancy plays an important role in all the phases of a scuba dive. In this article, we look in detail at particular elements of a scuba dive, with an emphasis on the impact of scuba buoyancy control on the safety and enjoyment […]

Breath control for scuba diving lung volume

Scuba Buoyancy Masterclass #6 SCUBA BUOYANCY AND BREATHING by Andy Davis Breathing plays a critical role in scuba buoyancy control.  As we breath, the inflation and deflation of our lungs is continually affecting our buoyancy, but providing the breathing remains steady, slow and controlled it is rarely noticeable on a scuba dive. The Lungs are […]

Scuba Diving Philippines

Scuba Buoyancy Masterclass #5 PRECISION TRIM & POSITION CONTROL by Andy Davis Whenever we use our fins for propulsion in the water, we create directional thrust. If our body is not horizontally trimmed (‘flat’) in the water, then we will be accidentally directing that thrust at an angle (upwards or downwards) that will interfere with […]

scuba diving Weighting

Scuba Buoyancy Masterclass Series #4 PERFECT SCUBA WEIGHTING by Andy Davis Divers seeking perfected scuba buoyancy can achieve precise and correct weighting through the application of several assessment methods.  As the diver progresses in experience, whenever they change equipment or whenever they change diving environments (salt/fresh water) they should re-assess their weighting. During the initial […]

Trim-Thrust-Buoyancy scuba diving

Scuba Buoyancy Masterclass ACHIEVING GREAT SCUBA BUOYANCY CONTROL by Andy Davis Scuba buoyancy control is determined by a number of different factors, such as breathing control, BCD/Drysuit inflation/deflation, weighting, trim and propulsion. As we know from our initial scuba training courses, our relative buoyancy underwater is dictated by whether the weight of water we displace […]

Scuba diving for fun and relaxation

Scuba Buoyancy Masterclass Series #2 PRECISION BUOYANCY CONTROL BENEFITS by Andy Davis Let’s have a look at 7 specific reasons why effective scuba buoyancy control is critical to the scuba diver: Environmental Considerations Fragile marine life is easily damaged The underwater world is a fragile environment and unintended contact from a diver is going to […]

advanced wreck diving course subic bay

ADVANCED WRECK DIVING – COURSE NOTES by Andy Davis Disclaimer:   These notes accompany a professionally supervised advanced wreck diving workshop, aimed at developing specialist skills for qualified wreck divers.  This information is not a substitute for gaining proper experience under qualified direction.  Wreck penetration is a very hazardous scuba diving activity.  Divers should not […]

5 Minute Photoshop Edit for Underwater Photographers by Andy Davis, PADI TecRec, ANDI, BSAC and SSI Instructor Many divers don’t have the luxury of using underwater strobes to provide effective directional lighting for their underwater photography.  With a basic point-and-shoot underwater camera, the resulting pictures are often washed-out and contain too little red light.  When […]

Wreck Diving Subic Bay

Scuba Buoyancy Masterclass Series #1 Scuba Buoyancy Control for Divers by Andy Davis Effective scuba buoyancy control is, without doubt, the most important attribute that a diver needs to develop. Control of your buoyancy has a direct impact on air consumption, comfort, relaxation and the control of descents and ascents – which have direct safety […]

air sharing emergency scuba diving

Don’t Get Gas Mugged! – A Predictable Strategy For Stress-Free Air Sharing Emergencies by Andy Davis I see lots of debate on scuba diving social media about optimal regulator configurations for air sharing. Divers debate the pros and cons of ‘traditional’ octopus, AIR2 systems, using the long hose, spare air and pony systems, primary share […]

Sidemount Harness Set Up copyright 2019 Andy Davis

Ultimate Guide : How To Set Up Your Sidemount Harness by Andy Davis A lot of divers find setting up a sidemount harness to be confusing, even those with experience diving backmount style wings.  Here’s my ultimate guide to setting up, sizing and configuring your sidemount harness. This article deals with ‘Mexican cave’ (aka UK) […]

how to tie a regulator bungee necklace 1

How to Tie a Regulator Bungee Necklace Technical, sidemount and hogarthian configuration scuba divers utilize a regulator bungee necklace for stowage of the short hose back-up.  These regulator bungee necklaces are available for purchase in many scuba shops.  The manufactured ones are made of rubber, costs are relatively high and there is no option for […]

Scuba diving skills and techniques

 How to Judge Your Ascent Rate Without a Dive Computer by Andy Davis Novice divers often express frustration about how to best conduct safe and controlled ascents from their scuba dives. In particular, I see many new divers questioning the best technique for judging their ascent speed.  The common use of dive computers has automated […]

DIY Sidemount Wreck Diving Helmet

DIY Sidemount Wreck Diving Helmet by Andy Davis I noticed, with some surprise, the high cost of cave sidemount wreck diving helmets currently being sold on the scuba market. Light Monkey sells an excellent diving helmet, but the cost (certainly here in the Philippines) was prohibitive for me.  I promote a policy of frugal investment on rugged […]